US 11,818,484 B2
Imaging device
Bumsik Chung, Seoul (KR); Minsun Keel, Seoul (KR); Myoungoh Ki, Seongnam-si (KR); and Daeyun Kim, Asan-si (KR)
Assigned to Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Jul. 21, 2021, as Appl. No. 17/381,777.
Claims priority of application No. 10-2020-0161099 (KR), filed on Nov. 26, 2020.
Prior Publication US 2022/0166946 A1, May 26, 2022
Int. Cl. H04N 25/75 (2023.01); G01S 17/89 (2020.01); G01S 17/26 (2020.01); G01S 7/48 (2006.01); H04N 23/80 (2023.01); H04N 25/40 (2023.01); H04N 25/71 (2023.01)
CPC H04N 25/75 (2023.01) [G01S 7/4808 (2013.01); G01S 17/26 (2020.01); G01S 17/89 (2013.01); H04N 23/80 (2023.01); H04N 25/40 (2023.01); H04N 25/745 (2023.01)] 20 Claims
OG exemplary drawing
 
1. An imaging device comprising:
a light source configured to be operated by an optical control signal that is generated using a combination of a first reference signal having a first frequency and a second reference signal having a second frequency different from the first frequency for each frame period of a plurality of frame periods;
a plurality of pixels, each of the plurality of pixels including a photodiode configured to generate an electrical charge in response to a light reception signal output by the light source and reflected from a subject, and a pixel circuit configured to output a pixel signal corresponding to the electrical charge of the photodiode; and
a logic circuitry configured to generate raw data to generate a depth image using the pixel signal,
wherein the plurality of pixels includes first pixels and second pixels, and
the logic circuitry is configured to input a first photo control signal having the first frequency to the pixel circuit connected to the photodiode in each of the first pixels, and is configured to input a second photo control signal having the second frequency to the pixel circuit connected to the photodiode in each of the second pixels.